Why? would appear to me an attack from LL on inworld stores... that seems to be the 'standardization' they are trying to acheive, I know this 'enhancement' seems to have caused an uproar in the circles I travel in inside SL.... Appears its a first strike against a whole myriad of things that are in SL.
Personally I strongly oppose this change as ill tempered, hostile, and not well thought out.